Mods, Boss GT61 Turbo,2 1/2 IC Pipes, Aeromotive fuel pump(30PSI), walbro Pump with 12v mod, Lex AFM, RC 550's,Full 3 inch turbo back exhaust. I only run shell 93 Pump Gas.
Only when im under a heavy load around 15-17 PSI, i makes a light Knocking- or pinging noise, at first i thought it was...